Atkinson Lighting Controllers with Motion Sensor Model PVLC-15MD. This fully waterproof PV charge and lighting controller for area lighting, roadside signs, and warning signs can be used with 12- or 24-volt systems. 15-amp and 40-amp versions are available. Controllers have a motion sensor to activate the light or load when motion is sensed. They have temperature compensation and can be used with sealed or flooded batteries. Pulse action reduces sulfation.